New Antimalware Engine is planned for release on 15 July 2010 (Microsoft)

As part of regular update of our Antimalware technology to address the latest in the threat landscape, the Microsoft Antimalware Team is planning to release a new antimalware engine on 15 July 2010.
Affected products: Microsoft Security Essentials (MSE), Forefront Client Security (FCS)
Engine Version will be in the range of 1.1.600X.0

Well, it's still the 15th where I am (U.S), and, if it's anything like MSE's virus updates, it'll happen in the middle of the night, at least in my experience. Or, it could have been pushed back a bit for more tweaking. Who knows with Microsoft.

What update problem? It's a malware engine update not a Program Update.

I still think this thread is a little over-hyped. These engine updates are reasonably regular, and though they do offer improvements in detection, improvements in speed and such are questionable, not that I bother with before/after testing.

What update problem? It's a malware engine update not a Program Update.

Click to expand...

If you have visited the MSE forums lately, there have been many reports where the first update(manual/automatic/scheduled) after a cold boot/restart did not complete. Upon a second attempt though the update would finish fine. The problem would come up again after a restart/cold boot. I can vouch for this as I myself experienced this issue multiple times. And I am also happy to report that this is no longer a problem after the new update.